Why do microbes reduce nitrate to N2 (denitrification)? Denitrification causes loss of N from soils to the atmosphere. How can it be minimized?

Q: Explain how EDTA interacts with a metal? Why do we use it as a titrating agent? Why is EDTA a common…

A: Answer- EDTA is a versatile chelating agent. It can form four or six bond with metal ion and it form…

Q: which element is the oxidizing agent?

A: Increase in the oxidation number is the oxidation and lowering in the oxidation number is the…

Q: 53. Determine whether or not each redox reaction occurs sponta- neously in the forward direction.…

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Q: I2 + 5 Cha + 6 H20 > 2 HIOg + 10 HCl a. has iodine been oxidized, or has it been reduced? b. has…

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Q: Please answer question 5A, 5B, and 5C.

A: The balanced chemical equation for the combustion of octane can be written as follows-

Q: Identify the substances that are oxidized and reduced, and indicate which is the oxidizing agent and…

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Q: 19.Which explanation below best describes why the following reaction occurs? 3Zn + H33PO44 --> 3H22…

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Q: What distinguishes substances like salt and sugar from those found in e-waste like lead,mercury,…

A: Salt and sugar are substances that we use in our daily life. While lead,mercury, cadmium and arsenic…

Q: Which chemical is a stronger oxidant? Ozone (03) O Hydrogen peroxide (H2O) O Chlorine (C12)…

A: Well, strong oxidant or oxidizing agent means the species which will oxidise other species and…

Q: a) State and describe a specific potentially harmful chemical substance from the topic. b) Explain…

A: Sufur dioxide (SO2 ) are produced when Sulfur containing fossil fuel is burnt. It is a gas that is…

Q: Which of the following is not a source of Lead contamination? Group of answer choices Cement…

A: Lead contamination is a type of metal poisoning caused by lead in the body.

Q: 10. Identify the oxidizing agent in the following reaction: 4KC1O3(s) + C6H1206(s) → 4KCI(s) +…

A: The given equation is:

Q: What's the reaction of zinc phosphate?

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Q: a) How many electrons are transferred during the oxidation of ethanol (C2H5OH) to carbon dioxide…

A: a) How manyelectrons are transferred during the oxidation of ethanol (C2H5OH) to carbon dioxide…

Q: Consider the reaction shown below. 2 MnCl2 + 5 NaClO + 6 NaOH ⟶ 2 NaMnO4 + 9 NaCl + 3 H2O Which…

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Q: Is hydrogen actually a resource? What makes it a good fuel? What are the important drawbacks? How is…

A: The explanation is given below-

Q: 48 of 48 In the reaction below, which substance is belng axidized? Fe203 + 3CO -> 2Fe + 3C02 O Co Fe…

A: A substance is said to be oxidized when its oxidation number is increased.

Q: Aqueous permanganate ion may also be reduced using aqueous bromide ion, Br−, the products of this…

A: The oxidation (O) and reduction (R) half reactions taking place are  O: Br- → BrO3-          =>…

Q: In the Benedict's test:   a)the copper (II) ion is oxidized b)an aldehyde is oxidized c)a silver…

A: The result of Benedict's solution has to identified.

Q: 21. For the metathesis reaction between copper(II) sulfate (CuSO4()) and sodium carbonate…

A: We have find out the net ionic equation for the reaction.

Q: Which of these atoms will be most favorable to oxidize? Ca Li Na Sr

A: Oxidation means increase in oxidation number or we can say that removal of electrons.

Q: CH4, is oxidized to CO2 in the presence of O2. How much free energy is released per mole of CH4…

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Q: Assuming an efficiency of 22.00%, calculate the actual yield of magnesium nitrate formed from 124.1…

A: Given, a chemical reaction as follows,Mg+Cu(NO3)2→Mg(NO3)2+Cuamount of Mg for reaction =124.1 gand…

Q: pb (cH3co0)2 +k2 croqpbcro4 +2CH3 cook 2,5g chrome yellow Question: calculate the efficiency? Factor…

A: Limiting factor or limiting rea=g -             A limiting factor, also known as a limiting reactant…

Q: 8. A catalyst is used in a fuel cell to do what? a. Lower the activation energy of the reaction by…

A: Activation energy can be defined as the minimum amount of energy that must be provided to reactants…

Q: Just part c

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Q: Please answer questions 1- I just bought a new plant and I have been watering it. I have given it…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: WHAT IS THE USE OF SULFURIC ACID IN DETERMINATION OF IRON IN DIET SUPPLEMENT TABLETS?

A: Iron is used as supplement in body building builder . The iron (Fe) form ferrous sulphate (FeSO4).…

Q: 14.108 lodine is oxidized by nitric acid according to the following skeletal equation: I2 (s) +…

A: Unbalanced equation I2 (s) + NO3-  (aq)→HIO3 (aq) + NO2 (g)

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.